I recently experienced a runaway diesel engine for the first time. WOW, that was a really crazy time. Thank God for neighbor Bob. Anyway back 2 problem at hand. Engine starts fine but I have no drive/loader HYDRAULICS. My backhoe/ outriggers work. Anybody know what isolates the forward HYDRAULICS. I think electrical . Possibly the joystick controls. Any help would be greatly appreciated.
Hello Sir From what I can see you are correct. The machine supplies oil from the P3 pump to the remote controls via a pressure reducing valve with a 3 position 3 way dump solenoid valve. This arrangement changes depending on the serial number. See attached for basic arrangement. hope this helps Kind regards
greatly appreciated. now can hopefully find the problem. its a bit tricky cuz jcb doesnt use color coded wiring diagrams and wiring on this is definitely not stock.somewhat a rats nest. thanks again